Three years after their father’s murder, two Taunton children fear danger lurks behind every corner, even in their own home, their grandmother says.

“They are so afraid to go from one room to another,” said Tina Vargas, mother of the Vargas brothers. “I want to be able to tell these kids the bad guys are in jail and won’t hurt anyone again. I can’t tell them that.”

The two boys, now 5 and 7, were present during the fatal shootings of their father, Kevin Vargas, and uncle, Shawn Vargas. It took place on a Sunday afternoon in a Somerset Avenue studio apartment.

“They remember it,” said Tina Vargas. “The oldest one brings it up quite a bit. It’s hard to explain it to them.”

Thursday night, family and friends of the Vargas brothers will gather at 6 in a park on West Water Street to remember their lives on the third anniversary of their slayings. Shawn was 21 and Kevin was 23 when they were killed on Feb. 24, 2008.

No one has been arrested in connection with the case.

The victims’ mother said her life was devastated by the murders and begs anyone with information about those responsible to pass it along.

“If they don’t want to come to the police, come and tell me,” said Tina Vargas. “I will go talk to the police for them.”

Shawn also had two children: a 4-year-old son and a 2-year-old daughter.

“No one deserves to be murdered like this,” said Dave Vargas, the uncle of the brothers. “Nobody has been brought to justice. That’s some ruthless killers running around.”

A state police investigator for the Bristol County District Attorney’s office remains on the case, which has been “very active” in the past six months, according to district attorney spokesman Gregg Miliote.

“There hasn’t been a year that has gone by since we haven’t gotten any leads or new information,” Miliote said. “There is a state trooper assigned to our office who is determined to solve this case.”

A $10,000 reward was established for information that leads to the arrest or arrests of any individuals involved in the murder of the Vargas brothers. For more information about the reward or to submit a tip, e-mail vargasreward@hotmail.com.

Miliote said a Text-A-Tip program made available by the Bristol County District Attorney’s office also provides a confidential avenue for tips. Text-a-Tip can be accessed at www.tipsubmit.com or through SMS messaging to C-R-I-M-E-S (274637) with the key word “Call50.”